Chalk and Trachyandesite Definition

Definition of Chalk and Trachyandesite

The general Chalk and Trachyandesite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Trachyandesite is an extrusive igneous rock.. Along with definition of Chalk and Trachyandesite, get to know about Properties of Chalk and Trachyandesite. Get to know more information about Chalk and Trachyandesite origin and discoverer, etymology and class.

History of Chalk and Trachyandesite

The history of Chalk and Trachyandesite gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Chalk and Trachyandesite Origin and Discoverer

Chalk and Trachyandesite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Chalk and Trachyandesite. In this section, you will know about Chalk and Trachyandesite Origin and Discoverer. Origin of Chalk is Unknown whereas Origin of Trachyandesite is Indonesia. It is interesting to know the name of Chalk and Trachyandesite discoverer. The discoverer of Chalk and Trachyandesite are Unknown.

Etymology of Chalk and Trachyandesite

Along with Chalk and Trachyandesite definition, know more about the etymology of Chalk and Trachyandesite. Etymology of Chalk and Trachyandesite gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Trachyandesite. The etymology of Chalk is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone while that of Trachyandesite is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chalk belongs to Sedimentary Rocks while Trachyandesite belongs to Igneous Rocks. The sub-class, group and other categories of Chalk and Trachyandesite are listed below.

For Chalk,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Trachyandesite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock